My wife is eight months pregnant and is having difficulty sleeping. She has cts syptoms in her arm an hand. Never before. Why is this? Any relief?

Usually swelling. In pregnancy, your blood volume doubles. This means there is a ton of extra fluid on board. This fluid sometimes squeezes nerves in the shoulder, elbow and wrist giving the carpal tunnel symptoms. Sometimes braces help. Fortunately, it does go away but not until after delivery. Ask for wrist braces and using a body pillow to support her joints may help. If not ask to talk to a neurologist.